CA2353584A1 - Method to reduce partial discharge in high voltage stator coil's roebel filler - Google Patents

Method to reduce partial discharge in high voltage stator coil's roebel filler Download PDF

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Publication number
CA2353584A1
CA2353584A1 CA002353584A CA2353584A CA2353584A1 CA 2353584 A1 CA2353584 A1 CA 2353584A1 CA 002353584 A CA002353584 A CA 002353584A CA 2353584 A CA2353584 A CA 2353584A CA 2353584 A1 CA2353584 A1 CA 2353584A1
Authority
CA
Canada
Prior art keywords
high voltage
stator coil
partial discharge
filler
reduce partial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002353584A
Other languages
French (fr)
Other versions
CA2353584C (en
Inventor
Franklin Timothy Emery
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Energy Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2353584A1 publication Critical patent/CA2353584A1/en
Application granted granted Critical
Publication of CA2353584C publication Critical patent/CA2353584C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/40—Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect
    • H01B7/306—Transposed conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H02K3/14—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots with transposed conductors, e.g. twisted conductors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2936—Wound or wrapped core or coating [i.e., spiral or helical]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2942—Plural coatings
    • Y10T428/2947—Synthetic resin or polymer in plural coatings, each of different type

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

A filler material for the exterior surface of a high voltage coil having Roebeled strands is described. The filler material comprises an epoxy resin impregnated felt which is wrapped in a low resistance conductive tape. The conductive tape reduces potential gradients across the filler material, thereby reducing the occurrence of unwanted electrical discharges in the filler voids.
CA002353584A 1998-12-02 1999-11-30 Method to reduce partial discharge in high voltage stator coil's roebel filler Expired - Fee Related CA2353584C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/203,732 1998-12-02
US09/203,732 US6228494B1 (en) 1998-12-02 1998-12-02 Method to reduce partial discharge in high voltage stator coil's roebel filler
PCT/US1999/028424 WO2000033443A1 (en) 1998-12-02 1999-11-30 Method to reduce partial discharge in high voltage stator coil's roebel filler

Publications (2)

Publication Number Publication Date
CA2353584A1 true CA2353584A1 (en) 2000-06-08
CA2353584C CA2353584C (en) 2007-09-25

Family

ID=22755103

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002353584A Expired - Fee Related CA2353584C (en) 1998-12-02 1999-11-30 Method to reduce partial discharge in high voltage stator coil's roebel filler

Country Status (6)

Country Link
US (1) US6228494B1 (en)
EP (1) EP1135843B1 (en)
KR (1) KR100643499B1 (en)
CA (1) CA2353584C (en)
DE (1) DE69926787T2 (en)
WO (1) WO2000033443A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6559384B1 (en) * 1998-12-18 2003-05-06 Electrolock, Inc. Conductive filler
IT249823Y1 (en) * 2000-10-06 2003-06-05 Mazzer Materie Plastiche Di Gi PROTECTIVE SHEATH
US6724118B2 (en) * 2001-06-13 2004-04-20 Siemens Westinghouse Power Corporation Electrical isolation layer system strand assembly and method of forming for electrical generator
US6660940B1 (en) * 2002-07-01 2003-12-09 Siemens Westinghouse Power Corporation Insulation insert for preventing strand-to-strand contact in high-voltage coils
CH698300B1 (en) * 2006-01-24 2009-07-15 Alstom Technology Ltd Stator winding of a rotating electric machine and a method for manufacturing such a stator winding.
WO2009152858A1 (en) * 2008-06-19 2009-12-23 Siemens Transformers Austria Gmbh & Co Kg Continuously transposed conductor for a winding for an electric machine
US8278795B2 (en) * 2009-09-18 2012-10-02 Siemens Energy, Inc. Voltage grading structure in a high-voltage stator coil of an electromotive machine
JP2011077010A (en) * 2009-10-02 2011-04-14 Canon Inc Electron beam excitation type image display apparatus, and electronic device with the same
EP2387047B1 (en) * 2010-05-12 2012-06-06 Essex Europe Electrical conductor and method for producing an electrical coil
US8872405B2 (en) 2012-02-01 2014-10-28 Siemens Energy, Inc. High voltage stator coil with reduced power tip-up
CN103296811B (en) * 2013-05-29 2015-04-01 苏州巨峰电气绝缘系统股份有限公司 Interturn insulating structure of super-thin 6kV high-voltage motor and manufacturing method of interturn insulating structure
EP3010124B1 (en) * 2014-10-15 2019-11-27 GE Renewable Technologies A method for fabrication of a conductor bar
AT521591B1 (en) * 2018-06-12 2020-10-15 Asta Elektrodraht Gmbh Multiple parallel conductors with spacer plates

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1784997A (en) 1928-07-02 1930-12-16 Westinghouse Electric & Mfg Co Corona elimination in dynamo-electric machines
US2705292A (en) 1953-05-07 1955-03-29 Siemens Ag Slot conductor for dynamoelectric machines
US2939976A (en) 1956-08-31 1960-06-07 Westinghouse Electric Corp Corona suppression in high voltage coils
FR2082145A5 (en) 1970-03-04 1971-12-10 Alsthom Composite coil insulation - with resinous insulation, porous sheath and synthetic surface conducting layer
US3679925A (en) 1971-02-02 1972-07-25 Westinghouse Electric Corp Electrical apparatus with corona suppression means
JPS4899647A (en) * 1972-03-31 1973-12-17
DE2655609C2 (en) * 1976-12-06 1984-05-17 Siemens AG, 1000 Berlin und 8000 München Winding an electrical machine
US5066881A (en) 1984-08-23 1991-11-19 General Electric Company Semi-conducting layer for insulated electrical conductors
US5067046A (en) 1984-08-23 1991-11-19 General Electric Company Electric charge bleed-off structure using pyrolyzed glass fiber
SE457030B (en) * 1987-03-24 1988-11-21 Asea Ab ELECTRICAL ISOLER MATERIALS INCLUDING AN ISOLAR LAYER OF AN ORGANIC POLYMER AND USE OF THE ISOLER MATERIAL IN A HAIR.
SE457031B (en) * 1987-03-24 1988-11-21 Asea Ab ELECTRIC conductor is provided with a surrounding insulation comprising a layer of an organic polymer and the use of the conductor in a harrow.
US5175396A (en) 1990-12-14 1992-12-29 Westinghouse Electric Corp. Low-electric stress insulating wall for high voltage coils having roebeled strands
ES2079884T3 (en) * 1991-09-13 1996-01-16 Siemens Ag IMPREGNABLE DISPOSITION OF A SUPPORT BODY AND ROLLING ELEMENTS.
US5633477A (en) 1994-05-16 1997-05-27 Westinghouse Electric Corporation Electrically conductive prepreg for suppressing corona discharge in high voltage devices
JP3647467B2 (en) * 1995-07-18 2005-05-11 シーメンス アクチエンゲゼルシヤフト Winding element of electric machine
US5945764A (en) 1995-07-18 1999-08-31 Siemens Aktiengesellschaft Winding element for an electrical machine, assembly and set having a plurality of winding elements

Also Published As

Publication number Publication date
EP1135843B1 (en) 2005-08-17
CA2353584C (en) 2007-09-25
KR20010080595A (en) 2001-08-22
KR100643499B1 (en) 2006-11-10
US6228494B1 (en) 2001-05-08
DE69926787D1 (en) 2005-09-22
DE69926787T2 (en) 2006-03-09
EP1135843A1 (en) 2001-09-26
WO2000033443A1 (en) 2000-06-08

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EEER Examination request
MKLA Lapsed

Effective date: 20191202